HELLO CHINESE

A professionally made application that gets you gradually and playfully into Chinese.
Basic levels and basic functionality for free.
Link for download  (Android)

PINYIN TRAINER LITE

A simple application for training pinyin and tones.
Free.
Link for download (Android)

WRITER

A simple application for practicing the principles of character writing.
Link for download (Android)

IMMERSIVE CHINESE

Application for training reading and listening skills.
Simple and functional, very responsive, high quality audio.
First lessons for free, all for 6 Euro (one-time payment).
Link for download (Android)